• 
  Leonard Nimoy

  Narab
• 
  John Crawford

  Roth
• 
  Dale Van Sickel

  Peralta Junction Station Agent [Chs. 1, 10]
• 
  Jack Shea

  Rocketship Guard [Ch. 2]
• 
  John Daheim

  Bărbat
• 
  Gayle Kellogg

  Dick the Rocketship Pilot
• 
  Roy Engel

  Boat Charter Operator [Ch. 3]
• 
  Lane Bradford

  Marex

• 
  Roy Barcroft

  Central Control Radio Operator [Chs. 1,11]/Ross [Ch. 4]

• 
  Stanley Wilson

  departament sunet
• 
  Adele Palmer

  costume and wardrobe departmen
• 
  David Buttolph

  music department
• 
  R. Dale Butts

  music department
• 
  Robert Armbruster

  music department
• 
  Victor Young

  music department

• 
  Ernest Gold

  music department
• 
  Frank Perkins

  music department
• 
  Heinz Roemheld

  music department
• 
  James Redd

  set decorator
• 
  John McCarthy Jr.

  set decorator
• 
  Howard Lydecker

  special effects
• 
  Dale Van Sickel

  cascador
• 
  John Daheim

  cascador